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??? (Boss)

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 ??? (Boss)
Boss Blue Baby.png
Base HP
2000
Stage HP
0
Found In
Stage chest.png
Dropped Items
Final Boss Chest
Disambig.png This article is about the boss at the end of The Chest. For the playable character, see Blue Baby. For the floor, see Blue Womb. For the pill effect, see Pills.

??? is the boss of The Chest which is accessed by defeating Isaac in the Cathedral while holding The Polaroid The Polaroid (dropped by Mom after beating the Cathedral 5 times). He is a posthumous version of Isaac.

Behavior[edit | edit source]

During all three of ???'s phases, he will always shoot multiple tears in the player's direction at fixed intervals. These shots have a small chance to be homing tears.

??? will not begin attacking the player until he takes damage.

First Phase

  • Fires single tears in Isaac's direction.
  • Shoots rapid-fire lines of tears that curve as they move.
  • Shoots rapid-fire lines of tears in eight directions with varying intensity and speed.

Second Phase

  • Fires single tears or two tears in Isaac's direction.
  • Two eternal flies begin to circle around ???, occasionally blocking tears.
  • Summons Attack Flies, Moters, Pooters, or Fat Flies to orbit around himself.
  • Shoots rapid-fire lines of tears that curve as they move.
  • Fires 4 homing tears in a lop-sided X pattern.
  • Fires 8 homing tears in every direction.

Third Phase

  • Fires single tears or two tears in Isaac's direction.
  • Spawns flies more aggressively.
  •  ??? will teleport at a distance in front of the player, in the last direction he was moving, or on the player if he didn't move at all. ??? will not teleport if he is slowed (e.g. with a Stop Watch Stop Watch ).
  • After ??? teleports, all flies previously spawned will be freed from orbit and engage in attacking the player normally.
  • Shoots rapid-fire lines of tears that curve as they move.

Unlockable Items[edit | edit source]

  • Golden God! Golden God! - Defeat ??? and The Lamb for the 1st time.

In addition, beating ??? with a particular character for the first time will place a Polaroid Completion Mark on that character's post-it note.

Gallery[edit | edit source]

Trivia[edit | edit source]

  • The music that plays during this boss fight is titled Ascension.[1] The term "ascend" is typically used in religion as the act of one's soul rising to Heaven.
  •  ???, along with Isaac, are the only two bosses who do not "die" upon losing all their health. Instead, ??? teleports away and the battle ends.
  •  ??? is commonly referred to as the 'blue baby' by the Binding of Isaac community, as well as Steam Achievements.
  • An identical ??? fight, with identical behavior and music, is used as the first phase of Hush, using a different sprite. The Hush version also has half the HP.

References[edit | edit source]


Bosses Boss Monstro.png
Chapter 1 Blighted OvumDingleThe Duke of FliesFamineFistulaGeminiGurdy Jr.GurglingsThe HauntLarry Jr.MonstroPinStevenWidow
DLC Indicator.png DangleLittle HornRag ManTurdlings
Chapter 2 C.H.A.D.ChubDark OneGurdyGurdy Jr.The HollowThe HuskMega FattyMega MawPeepPestilencePolycephalusCarrion QueenThe Wretched
DLC Indicator.png The ForsakenThe FrailThe Stain
Afterbirth† Indicator.png Big HornRag Mega
Chapter 3 The AdversaryThe BloatThe CageCarrion QueenThe GateGishLokiMask of InfamyMonstro IIWarThe WretchedMom
DLC Indicator.png Brownie
Afterbirth† Indicator.png Sisters Vis
Chapter 4 BlastocystThe BloatConquestDaddy Long LegsDeathIt LivesLokiiMama GurdyMom's HeartMr. FredScolexTeratomaTriachnid
DLC Indicator.png Blue Womb DLC Indicator.png Hush
Chapter 5 The FallenIsaacSatan
Chapter 6 ???The LambMega Satan
DLC Indicator.png Greed Mode DLC Indicator.png Ultra Greed
Afterbirth† Indicator.png Ultra Greedier
Afterbirth† Indicator.png The Void Afterbirth† Indicator.png Delirium
Chapters 1-4 The FallenThe Headless Horseman

SmallIsaac.png The Binding of Isaac: Rebirth SmallIsaac.png

MainPageAchievements.png Achievements MainPageAttributes.png Attributes MainPageBosses.png Bosses TarotCard.png Cards and Runes MainPageChallenges.png Challenges MainPageChapters.png Chapters
Isaac App.png Characters MainPageBabies.png Co-op Magic Mushroom Icon.png Items Isaac's Tears Icon.png Item Pools MainPageMonsters.png Monsters MainPageObjects.png Objects
Red heart.png Pickups BlueBlue.png Pills MainPageRooms.png Rooms MainPageSeeds2.png Seeds Guppy App.png Transformations The Left Hand Icon.png Trinkets